FEATURES
DIFFERENTIAL GAIN = 1V/V TO 1000V/V:
Set with External Resistors
LOW QUIESCENT CURRENT: 570mA
WIDE SUPPLY RANGE:
Single Supply: 4.5V to 36V
Dual Supplies: ±2.25V to ±18V
HIGH COMMON-MODE VOLTAGE:
+8V at VS = +5V
±28V at VS = ±15V
LOW GAIN ERROR: 0.01%
HIGH CMR: 86dB
SO-8 PACKAGE

APPLICATIONS
CURRENT SHUNT MEASUREMENTS
SENSOR AMPLIFIER
DIFFERENTIAL LINE RECEIVER
BATTERY POWERED SYSTEMS

DESCRIPTION
The INA145 is a precision, unity-gain difference
amplifier consisting of a precision op amp and onchip
precision resistor network. Two external resistors
set the gain from 1V/V to 1000V/V. The input common-
mode voltage range extends beyond the positive
and negative rails.
On-chip precision resistors are laser-trimmed to achieve
accurate gain and high common-mode rejection. Excellent
TCR tracking of these resistors assures continued
high precision over temperature.
The INA145 is available in the SO-8 surface-mount
package specified for the extended industrial temperature
range, –40°C to +85°C.